base converter

base_converter.py

from string import digits, ascii_lowercase

int_to_base_36 = digits + ascii_lowercase
base_36_to_int = {v:k for k,v in enumerate(int_to_base_36)}

def largest_multiple(n, multiplier):
    print(type(n), type(multiplier))
    exp = 1
    while True:
        if multiplier**(exp+1) > n:
            return exp
        else:
            exp += 1

def convert_base(n, base_one, base_two):
    n = str(n)
    # to base 10
    if base_one == base_two:
        return str(n)

    if base_one == 10:
        base_10 = int(n)
    else:
        #if base_one > 10:
        base_10 = sum([base_36_to_int[d] * base_one**i for i,d in enumerate(n[::-1])])
        #else:
        #    base_10 = sum([int(d) * base_one**i for i,d in enumerate(n[::-1])])

    if base_two == 10:
        return base_10
    else:
        exp = largest_multiple(base_10 ,base_two)
        base_two_n = ''
        mod = base_10
        for i in range(exp, -1, -1):
            if i == 0:
                base_two_n += int_to_base_36[mod]
            else:
                div, mod = divmod(mod, base_two**i)
                base_two_n += int_to_base_36[div]
    return base_two_n
print(convert_base(5214534535, 10, 30))
#print(largest_multiplie(326, 8))